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QUARTERLY MONITORING REPORT <br /> FIRST QUARTER 1996 <br /> 1 <br /> San Joaquin Catholic Cemetery <br /> Harding Way and Cemetery Lane <br /> Stockton, California <br /> ' INTRODUCTION <br /> ' On January 9, 1996 groundwater monitoring and sampling wasperformed at the above- <br /> referenced site The site is located approximately one mile north of downtown Stockton, <br /> California (Figure 1) <br /> GROUNDWATER GRADIENT <br /> ' Depth-to-groundwater measurements were taken in all five monitoring wells to evaluate <br /> groundwater flow and gradient characteristics The depth-to-groundwater at the site ranged from <br /> 52 90 to 54 60 feet below ground surface The elevation of the groundwater surface beneath <br /> the site ranged from a high of 35 90 feet below mean sea level (msl) in MW-1 to a low of 36 59 <br /> ' feet below msl in MW-3 Groundwater levels have risen an average of 3 23 feet since the last <br /> monitoring event on October 30, 1995 Groundwater monitoring data are summanzed in Table <br /> 1 <br /> ' The groundwater flow direction and gradient have remained relatively constant since the last <br /> monitoring event in October 1995 One exception to this trend is the groundwater measurement <br /> ' for MW-3 Groundwater levels in MW-3 did not rise as much as those in surrounding wells <br /> resulting in a groundwater surface depression around MW-3 These groundwater flow <br /> ' characteristics are illustrated on the groundwater surface map (Figure 2) Excluding the <br /> measurement recorded in MW-3, the maximum groundwater gradient was calculated at 0 006 <br /> ' ft/ft in an easterly airection <br />